Dual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers

Abstract In this paper, graphene-coated spherical nanoparticles are arranged around an infinite length dielectric cylinder to enhance its extinction cross-section. Initially, a single longitudinal one-dimensional periodic array is considered in different loci concerning the transverse electric (TE)...

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Autores principales:	Shiva Hayati Raad, Zahra Atlasbaf
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/121d171631a84dc1ac262352df018ac1
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spelling	oai:doaj.org-article:121d171631a84dc1ac262352df018ac12021-12-02T14:37:07ZDual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers10.1038/s41598-021-87145-72045-2322https://doaj.org/article/121d171631a84dc1ac262352df018ac12021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87145-7https://doaj.org/toc/2045-2322Abstract In this paper, graphene-coated spherical nanoparticles are arranged around an infinite length dielectric cylinder to enhance its extinction cross-section. Initially, a single longitudinal one-dimensional periodic array is considered in different loci concerning the transverse electric (TE) incident plane wave. It is observed that regardless of the position of the particles, the extinction cross-section of the dielectric cylinder is considerably enhanced with respect to the bare one. Later, by increasing the number of longitudinal plasmonic arrays around the cylinder, each residing in a different azimuthal direction, the extinction cross-section is further manipulated to observe double pronounced Fano resonances. The origin of the Fano resonances is described by considering their planar counterparts constructed by the periodic assembly of plasmonic oligomers. Finally, the hexamer configuration is considered as the prototype, and the effect of various optical, geometrical, and material parameters on the optical response is investigated in detail. Interestingly, due to the spherical symmetry of the cells, the extinction cross-section is also enhanced for the transverse magnetic (TM) incident wave, which is unattainable using a continuous plasmonic cover made of metal or graphene. The potential application of our proposed structure is in the design of reconfigurable conformal optical absorbers and sensors.Shiva Hayati RaadZahra AtlasbafNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shiva Hayati Raad Zahra Atlasbaf Dual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers
description	Abstract In this paper, graphene-coated spherical nanoparticles are arranged around an infinite length dielectric cylinder to enhance its extinction cross-section. Initially, a single longitudinal one-dimensional periodic array is considered in different loci concerning the transverse electric (TE) incident plane wave. It is observed that regardless of the position of the particles, the extinction cross-section of the dielectric cylinder is considerably enhanced with respect to the bare one. Later, by increasing the number of longitudinal plasmonic arrays around the cylinder, each residing in a different azimuthal direction, the extinction cross-section is further manipulated to observe double pronounced Fano resonances. The origin of the Fano resonances is described by considering their planar counterparts constructed by the periodic assembly of plasmonic oligomers. Finally, the hexamer configuration is considered as the prototype, and the effect of various optical, geometrical, and material parameters on the optical response is investigated in detail. Interestingly, due to the spherical symmetry of the cells, the extinction cross-section is also enhanced for the transverse magnetic (TM) incident wave, which is unattainable using a continuous plasmonic cover made of metal or graphene. The potential application of our proposed structure is in the design of reconfigurable conformal optical absorbers and sensors.
format	article
author	Shiva Hayati Raad Zahra Atlasbaf
author_facet	Shiva Hayati Raad Zahra Atlasbaf
author_sort	Shiva Hayati Raad
title	Dual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers
title_short	Dual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers
title_full	Dual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers
title_fullStr	Dual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers
title_full_unstemmed	Dual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers
title_sort	dual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/121d171631a84dc1ac262352df018ac1
work_keys_str_mv	AT shivahayatiraad dualpolarizedengineeringtheextinctioncrosssectionofadielectricwireusinggraphenebasedoligomers AT zahraatlasbaf dualpolarizedengineeringtheextinctioncrosssectionofadielectricwireusinggraphenebasedoligomers
_version_	1718390993396432896

Dual polarized engineering the extinction cross-section of a dielectric wire using graphene-based oligomers

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